An adaptive self-calibrating image rejection receiver is described, containing a modified Weaver image rejection mixer and a Digital Image Rejection Processor (DIRP). The blind source-separation-based DIRP eliminates the I/Q errors improving the Image Rejection Ratio (IRR) without the need for trimming or use of power-hungry discrete components. Hardware complexity is minimal, requiring only two complex coefficients; hence it can be easily integrated into the signal processing path of any receiver. Simulation results show that the proposed approach achieves 75-97 dB of IRR.
|Number of pages||5|
|Journal||IEEE International Conference on Communications|
|Publication status||Published - 2004|
- Adaptive I/Q-correction
- Phase and gain mismatch
- Unsupervised/Blind signal processing